Updates

• In this version, you can now attach any data to the Model instance using the
  set_data method, and retrieve it using the get_data and get_data_mut methods.
  This is useful for communicating data between plugins, or storing other representations of the
  variables/constraints in the model.

   let mut model = Model::new();
   
   // Some user-defined data
   struct MyData {
       title: String,
   }
   
   let data = MyData {
       title: "My Data".to_string(),
   };
   
   // Attach the data to the model
   model.set_data(data);
   
   // Retrieve the data
   let data_ref = model.get_data::<MyData>().unwrap();
   assert_eq!(data_ref.title, "My Data");
   
   // Mutate the data
   let data_mut = model.get_data_mut::<MyData>().unwrap();
   data_mut.title = "New Title".to_string();
   assert_eq!(data_mut.title, "New Title");

• This release also brings support to SCIP's diving and probing modes, through the start_diving and start_probing methods. Returning a Diver and Prober objects that allow access to methods only available in diving and probing modes respectively, where the mode is exited safely, when the corresponding object is dropped.

• New ergonomic builder for the Row object through row() function.

What's Changed

• Probing mode methods by @mmghannam in #242
• Change the default of adding solution to not print anything by @mmghannam in #243
• Add ergonomic row builder & ability to add row in probing mode by @mmghannam in #244
• LP status method by @mmghannam in #245
• Add diving support by @mmghannam in #246
• Datastore feature: allow attaching generic data to SCIP instance by @mmghannam in #247

Full Changelog: v0.8.0...v0.8.1